<template>
  <codemirror
    :value="inputValue"
    :options="cmOption"
    class="code-mirror"
    @ready="onCmReady3"
    @focus="onCmFocus"
    @input="onCmCodeChange"
    ref="myCmGenerate"
  ></codemirror>
</template>
<script>
import { codemirror } from "vue-codemirror";

// 我这里引入的是JS语言文件
import "codemirror/mode/javascript/javascript.js";

import "codemirror/lib/codemirror.css";
// require active-line.js
import "codemirror/addon/selection/active-line.js";
// styleSelectedText
import "codemirror/addon/selection/mark-selection.js";
// hint
import "codemirror/addon/hint/show-hint.js";
import "codemirror/addon/hint/sql-hint.js";
import "codemirror/addon/hint/show-hint.css";
import "codemirror/addon/hint/javascript-hint.js";
// highlightSelectionMatches
import "codemirror/addon/scroll/annotatescrollbar.js";
import "codemirror/addon/search/matchesonscrollbar.js";
import "codemirror/addon/search/match-highlighter.js";
// keyMap
import "codemirror/mode/clike/clike.js";
import "codemirror/mode/sql/sql.js";

import "codemirror/addon/edit/matchbrackets.js";
import "codemirror/addon/comment/comment.js";
import "codemirror/addon/dialog/dialog.js";
import "codemirror/addon/dialog/dialog.css";
import "codemirror/addon/search/searchcursor.js";
import "codemirror/addon/search/search.js";
import "codemirror/keymap/sublime.js";
// foldGutter
import "codemirror/addon/fold/foldgutter.css";
import "codemirror/addon/fold/brace-fold.js";
import "codemirror/addon/fold/comment-fold.js";
import "codemirror/addon/fold/foldcode.js";
import "codemirror/addon/fold/foldgutter.js";
import "codemirror/addon/fold/indent-fold.js";
import "codemirror/addon/fold/markdown-fold.js";
import "codemirror/addon/fold/xml-fold.js";
// 编辑的主题文件
import "codemirror/theme/monokai.css";
import "codemirror/theme/base16-light.css";

import "codemirror/theme/idea.css";

export default {
  components: { codemirror },

  data() {
    return {
      item: "aaa",
      cmOption: {
        tabSize: 2, // tab
        styleActiveLine: true, // 高亮选中行
        lineNumbers: true, // 显示行号
        lineWrapping: true,
        styleSelectedText: true,
        line: true,
        foldGutter: false, // 块槽
        // gutters: ['CodeMirror-linenumbers', 'CodeMirror-foldgutter'],
        highlightSelectionMatches: { showToken: /\w/, annotateScrollbar: true }, // 可以启用该选项来突出显示当前选中的内容的所有实例
        // 模式, 可查看 codemirror/mode 中的所有模式
        mode: {
          name: "javascript",
          json: true,
        },
        // hint.js options
        //mode: this.mode,
        hintOptions: {
          // 当匹配只有一项的时候是否自动补全
          completeSingle: false,
        },
        // 快捷键 可提供三种模式 sublime、emacs、vim
        keyMap: "sublime",
        matchBrackets: true,
        showCursorWhenSelecting: true,
        theme: "idea", // 主题
        extraKeys: { Ctrl: "autocomplete" }, // 可以用于为编辑器指定额外的键绑定，以及keyMap定义的键绑定,

        cursorHeight: 0.94,
      },

      inputValue: "",
    };
  },

  props: {
    value: {
      type: String,
      default: "",
    },

    height: {
      type: String,
      default: "200px",
    },

    width: {
      type: String,
      default: "100%",
    },

    // 模式, 可查看 codemirror/mode 中的所有模式
    // mode: {
    //   type: Object,
    //   default: {
    //     name: 'javascript',
    //     json: true
    //   }
    // }
  },

  watch: {
    value(val, old) {
      //
      this.inputValue = val;
    },
  },

  created() {
    this.inputValue = this.value;
  },
  methods: {
    setActive() {},

    onCmReady3() {
      let _this = this;

      if (this.height != "auto") {
        this.$refs.myCmGenerate.codemirror.setSize(_this.width, _this.height);
      } else {
        this.$refs.myCmGenerate.codemirror.setSize(_this.width);
      }
    },
    onCmFocus(instance, event) {},
    onCmCodeChange(instance, obj) {
      this.$emit("input", instance);
    },
  },
};
</script>
<style>
.CodeMirror-scroll {
  overflow: scroll !important;
  margin-bottom: 0;
  margin-right: 0;
  padding-bottom: 0;
  /*height: 100%;*/
  outline: none;
  position: relative;
  /*border: 1px solid #dddddd;*/
}
.code-mirror {
  font-size: 13px;
  line-height: 150%;
  text-align: left;
}

.CodeMirror {
  border: 1px solid #dddddd;
  height: auto;
}
</style>
